qr-code

问题 i can't figure out how to build a OR Code for a Pass that is scannable with the new QR code scanner in iOS7' Passbook App. When I try to scan a QR Code with a link to a working Pass, the App says it is 'No Pass available for this Card'. Card, hum?! Any ideas? 回答1: For a pass to install, the following criteria have to be met: The link must be https The URL must return a valid .pkpass bundle The Content-Type header must be application/vnd.apple.pkpass Unfortunately, these requirements are not

问题 I'm having some troubles using the C++ sources from the Zxing project. I downloaded the whole project from https://code.google.com/p/zxing/downloads/list and just took the cpp files (core and cli). I just want to have a method like that: decode(byte[] dataToDecode, int widthFrame, int heightFrame) but I really don't know how to do it (I'm really new to c++ and Zxing project). I've done research on the web and found http://wiki.ssrrsummerschool.org/doku.php?id=robocup2012:qrcode-cppexample

问题 I am looking for a javascript API for generating QR codes (name, address and such) and outputting them in a printable format (png/jpeg/pdf). This seems to me to be something others before must have had a need for. 回答1: Google has a QR code generator as part of their Chart Tools that you can use here. http://code.google.com/apis/chart/infographics/docs/qr_codes.html 回答2: jquery-qrcode jQuery plugin also generates QR code using HTML5 canvas element or HTML table, if canvas is not supported.

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 2 years ago . What do we have out there available to us (if anything) that we can call for QR data discovery and extraction on an image? While there have been plenty of posts thus far referencing the ZXing library for QRCode scanning, I haven't found that to be a solution that works for me. Several others have been asking for

问题 Warning: sharing your TOTP seed with third-parties breaks the very basic assumption of multi-factor authentication that the TOTP seed is secret . So, I'm aware of the documentation on this, found here: Google Authenticator Key URI Format When I follow this example from that page: otpauth://totp/Example:alice@google.com?secret=JBSWY3DPEHPK3PXP&issuer=Example And I 'splice' it into a Google Charts URL, thus: https://www.google.com/chart?chs=200x200&chld=M|0&cht=qr&chl=otpauth://totp/Example

问题 I can not figure this one out how tcpdf recalculates x and y coordinates if orientation is landscape. The only way i can get a bit of control is to put text in a writeHTML // QR code $style = array( 'border' => false, 'padding' => 'auto', 'fgcolor' => array(0,0,0), 'bgcolor' => false ); $pdf->SetXY(0, 0); $pdf->write2DBarcode('http://www.google.com/', 'QRCODE,H', 0, 1, 40, 40, $style, 'N'); // set text content $pdf->SetXY(2, 37); //$pdf->SetXY(30, 7); $pdf->SetFontSize(10); $textData = '<p

问题 I'm trying to create a website with forms for people to fill out and when the user presses submit button the texts in each form field are concatenated into a single text string to be used to make a QR code. How could I do this and what language would be the best for most browsers to be compatible. In addition, I would like to have the text fields have a new line (\n) associated with it to make the format a little more pretty when the user scans the QR code. Please let me know.. Thanks in

问题 I have <div id="qrcode"></div> Then jquery.qrcode.js plugin creates over a ` element with the QR Code. So, i would like to put a <button> element in the page for downloading that "image" (it's a canvas element) created on the fly. Is it possible to do that? 回答1: jquery canvas image download The saving of the image can be done using HTML5 blobs. http://www.html5rocks.com/en/tutorials/file/filesystem/#toc-file-writing You can get Blob out of the like done in this code: https://github.com

问题 I know there are someone have ask this question.But it is a sorry i donot find the answer. dispatchQueue = dispatch_queue_create("myQueue", NULL); [captureMetadaOutput setMetadataObjectsDelegate:self queue:dispatchQueue]; // [captureMetadaOutput setMetadataObjectTypes:[NSArray arrayWithObject:AVMetadataObjectTypeQRCode]]; // 设置条码类型 captureMetadaOutput.metadataObjectTypes = @[AVMetadataObjectTypeQRCode]; i got crashes info from Crashlytics: [AVCaptureMetadataOutput setMetadataObjectTypes:] -

问题 I'd like to generate a qr-code which will contain all informations concerning a user with django. can you help me please....even with a link or a code...or with a github project ;) thanks 回答1: Have a look at qrcode library. It should be able to do everything you need. Here's a code snippet to get started: import qrcode qr_image = qrcode.make('cullzie') qr_image.save('user_data_qr.png') 来源： https://stackoverflow.com/questions/55269996/python-how-to-generate-qrcode